verify-new-files.sh

   1 #!/bin/zsh
   2
   3 set -e
   4
   5 # Bring up a new batch stack. We overwrite the -max_stacks flag: by default it
   6 # is 5. This way, we can always bring up a batch stack, even if there are 5
   7 # batch queries running currently.
   8 STACK=$(dcs-batch-helper -max_stacks=6 create)
   9 if [ $? -ne 0 ]
  10 then
  11         echo "Could not create a new batch stack" >&2
  12         exit 1
  13 fi
  14
  15 # Now point the source-backend to /dcs/unpacked-new instead of /dcs/unpacked.
  16 EXECSTART=$(perl -nlE 'say if /^ExecStart=.*[^\\]$/ || /^ExecStart=/ .. /[^\\]$/' < /run/systemd/system/dcs-batch${STACK}-source-backend.service | sed 's,/dcs/unpacked,/dcs/unpacked-new,g')
  17
  18 mkdir /run/systemd/system/dcs-batch${STACK}-source-backend.service.d
  19 cat >/run/systemd/system/dcs-batch${STACK}-source-backend.service.d/args.conf <<EOT
  20 [Service]
  21 ExecStart=
  22 ${EXECSTART}
  23 EOT
  24
  25 systemctl daemon-reload
  26 systemctl restart dcs-batch${STACK}-source-backend.service
  27
  28 # And point the index-backends to /dcs/NEW/*.idx instead of /dcs/*.idx
  29 EXECSTART=$(perl -nlE 'say if /^ExecStart=.*[^\\]$/ || /^ExecStart=/ .. /[^\\]$/' < /run/systemd/system/dcs-batch${STACK}-index-backend@.service | sed 's,/dcs/index,/dcs/NEW/index,g')
  30 for backend in $(systemctl list-units --full | grep "^dcs-batch${STACK}-index-backend" | cut -f 1 -d ' ')
  31 do
  32         mkdir /run/systemd/system/${backend}.d
  33         cat >/run/systemd/system/${backend}.d/args.conf <<EOT
  34 [Service]
  35 ExecStart=
  36 ${EXECSTART}
  37 EOT
  38         systemctl daemon-reload
  39         systemctl restart $backend
  40 done
  41
  42 # TODO: remove this once dcs-web is socket-activated.
  43 sleep 10
  44
  45 # Verify the new files are okay.
  46 # As we discover problems, more checks could be added here, but this one seems fine for now.
  47 if ! wget -qO- "http://localhost:30${STACK}20/search?q=i3Font" | grep -q 'i3Font load_font'
  48 then
  49         echo "Stack not serving correctly, /search?q=i3Font did not contain 'i3Font load_font'" >&2
  50         exit 1
  51 fi
  52
  53 # Delete the drop-ins and destroy the batch stack.
  54 rm -rf /run/systemd/system/dcs-batch${STACK}-source-backend.service.d
  55 for backend in $(systemctl list-units --full | grep "^dcs-batch${STACK}-index-backend" | cut -f 1 -d ' ')
  56 do
  57         rm -rf /run/systemd/system/${backend}.d
  58 done
  59
  60 dcs-batch-helper destroy $STACK